Media guide rail base



FIG. 1 is a front perspective view of a media guide rail base showing our new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a first side plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a second side plan view thereof.

FIG. 6 is a first end plan view thereof; and,

FIG. 7 is a second end plan view thereof. 

We claim the ornamental design for a media guide rail base, shown. 